Does anyone have these in use ? I would like to know how loud relay noise they have.
I have few Lonsonho switches without neutral wire, and they are superb, but lonsonho switches with neutral wire do keep loud relay click sound when operated…
I don’t know the details of that particular device, hopefully someone who has one will comment.
Are the quiet Lonsonho switches that you have dimmers or on/off switches? Most smart devices that don’t require a neutral wire are dimmers.
Dimmers are almost always quieter than on/off switches.
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They are on/off zigbee devices 
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